The Roller Striker strikes off and finishes concrete slabs quickly and easily. A spinning tube pulls up the surcharge of concrete as it goes. The spinning roller action leaves aggregate near the surface resulting in a very strong floor, ready for power trowelling if required. Quick and easy to set up by connecting two pull handles and a hose to the power source. Tube charged in addition and are available in 3.66m, 4.26m, 4.88m, 5.49m, 6.10m, 6.71m, 7.32m and 7.92m